As promised, I went back to the store and the guy let me take some pictures of the pack. In my opinion, nothing matches it. As you can see in some of the pictures, where the zipper would be, there is a magnet lining both the top and bottom of the opening so it closes flush. The resistance is perfect and you don't have to worry about leaving your pack open, it closes automatically.
I asked the owner what he knew about them and he only said that William Joseph is "...out to crush fishponds fruity colored packs with unfluffy fishing gear". Pretty funny i guess.
He also said that those fishing in salt water conditions will love this because there is no zipper to corrode. Hope you enjoy.